Merge upstream main 6898094e into pr/attachments

Only ATTRIBUTION.toml met this branch: main's copy, hashes recomputed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

parity/acrobat-features.toml

@@ -4968,8 +4968,8 @@ milestone = "M6"
 status = "shipped"
 commands = ["form.field.properties"]
 tools = ["form_set_props", "form_fill"]
-evidence = ["crates/ui-egui/tests/prepare.rs::format_validate_and_calculate_tabs", "crates/automation/tests/automation.rs::form_formats_and_calculations_through_tools"]
-notes = "sum/product/average/min/max of picked fields, simplified field notation; custom script pending"
+evidence = ["crates/ui-egui/tests/prepare.rs::format_validate_and_calculate_tabs", "crates/automation/tests/automation.rs::form_formats_and_calculations_through_tools", "crates/forms/src/tests.rs::renaming_a_field_renames_it_in_the_calculations_that_read_it", "crates/forms/src/tests.rs::a_rename_reaches_every_stored_form_of_a_calculation", "crates/automation/tests/automation.rs::renaming_a_field_keeps_the_formulas_that_read_it", "crates/ui-egui/tests/prepare.rs::renaming_a_field_says_how_many_calculations_now_use_the_new_name"]
+notes = "sum/product/average/min/max of picked fields, simplified field notation; custom script pending. Renaming a field renames it in the calculations that read it (field lists, notation, and getField calls naming it in a string literal), in the rename's undo step; Field Properties says how many changed and form_set_props lists them. Not rewritten: names built at run time, other events' scripts, document-level scripts. Whether Acrobat does this is not observed."
 
 [[feature]]
 id = "form.props-selection-change"